SOLUTION: 1. A supermarket manager has determined that the amount of time customers spend in the supermarket is approximately normally distributed with a mean of 45 minutes and a standard de
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Question 779603: 1. A supermarket manager has determined that the amount of time customers spend in the supermarket is approximately normally distributed with a mean of 45 minutes and a standard deviation of 6 minutes. Find the probability that:
a. A customer spends less than 48 minutes in the supermarket(3pts)
b. Customer spends between 39 and 43 minutes in the supermarket(3pts)
